Why do fish jump in the water and why do many fish jump on the surface?

After a long period of research and exploration, scientists have found that fish jump out of the water, some to forage for food, some to escape from the pursuit of enemies, some to court, and some to breathe air with high oxygen content.

Some fish leap out of the water to escape from the enemy. Some fish that are chased to the surface of the water sometimes jump out of the water suddenly in order to protect themselves, so as to confuse the enemy, do not let them know their whereabouts, or jump out of the water and re-enter the water, so that they can change the escape route to avoid being caught by the ** eater. Mullets, for example, often jump out of the water to escape from barracuda or perch:

Rays are big enough, but they are a delicacy for bull sharks and hammerhead sharks, and in times of danger they can leap out of the water and stir up huge waves to confuse predators and evade their pursuit.

Some fish jump out of the water in search of food. For example, the tropical meat wana fish and the great white shark jump out of the water to catch food, and they have different jumping skills, the tropical meat wana fish has the best jumping ability among fish, they first bend their bodies into an S shape in the water, and then drill out of the water as fast as possible to catch insects, small birds or mammals, and then have a full meal. Great white sharks also jump out of the water to feed, they swim at the speed of an arrow to their prey, and after suddenly catching their prey, they will take advantage of the inertia to jump out of the water to suffocate the food due to lack of oxygen, but sometimes they will also jump out of the water to catch creatures on the water, such as seabirds.

Children's Puzzle: Why Can Fish Swim in Water?

In some ponds or breeding ponds, the picture of fish diving collectively often occurs in the afternoon summer, this is because the oxygen in the pond is not sufficient, the fish jump out of the water to breathe a little fresh air, this phenomenon is called floating head, this phenomenon is particularly easy to occur in the evening, the green plants in the water at night can not carry out photosynthesis, will not release oxygen, can only absorb oxygen, it causes the occurrence of hypoxia in the pond. The fish will float their heads, and when the floating head phenomenon is serious, it will cause a large area of fish to die.

For foraging. Some fish can jump out of the water to hunt dragonflies, birds and small mammals in the air, typical of which are great white sharks and salmons, all of which have different jumping skills.

Hide from prey. Some fish jump out of the water to escape the pursuit of natural enemies in the water, sometimes in the water by the natural enemy fish seen, will be used as food to hunt, at this time will jump out of the water so that the other party does not know where to go, or jump out of the water to change the direction of escape, to avoid being used as food, many fish have this habit, such as mullet, rays, barracudas, etc.

Attract the opposite sex. Some fish jump out of the water in order to be active, show themselves, attract the opposite sex, so as to get the opportunity to reproduce, most of the male fish that appear in this phenomenon are males, jumping out of the water and then burrowing into the water, the representative fish of this phenomenon are dolphins, beluga whales, toothed whales, killer whales, etc.

The environment is different. Some fish jump out of the water because they have just arrived at a new water environment, and they are not very suitable for this environment, this phenomenon mostly occurs in the black pit or in the breeding pond, the owner of the breeding pond puts the adult fish in the pit pond, and the fish are not adapted to the new water environment at the beginning, and they will jump out of the water back and forth, and this situation is basically gone after three or four days.

Fish jumping out of the water may be caused by lack of oxygen, usually the temperature in the fish tank rises, the oxygen increase is not high, it will lead to the lack of oxygen in the fish, the phenomenon of jumping out of the water to breathe, it is best to oxygenate the fish immediately, otherwise it will lead to the death of the fish.

What is the reason for the fish jumping to the surface, the sudden jump of the fish is a sign of lack of oxygen.

Fish jumping out of the water may also be frightened, when the fish fight in the tank, or when frightened by the outside world, they will jump out of the water, and there will also be a stress response.

If it is a farmed fish, it should be hypoxic.

The main reason is that because the air pressure is low and the water body is hypoxic, the fish have to go to the upper water surface with relatively more oxygen to replenish oxygen, so when it is hot and humid in summer, the fish will flood the pond.

Fish jump out of the water because of the lack of air in the pond, and the fish jump out of the water to suck in the oxygen in the air. Such a phenomenon is called fish"Floating head"。The phenomenon of floating heads in fish is most likely to occur at night in winter and after thunder and lightning in summer.

Green plants release oxygen only after photosynthesis in the sun, and at night they also absorb oxygen. The same is true for greenery in the water, which can cause the pond to be starved of oxygen. When winter comes, a large amount of oxygen is consumed due to the oxidative decomposition of organic matter in the water.

During summer thunderstorms, the water surface temperature is low and the bottom of the pool is high. When the hot water rises, the humus at the bottom of the pond is also turned up. At this time, humus needs a large amount of oxygen to accelerate its decomposition, and at the same time, it will release a large amount of carbon acid.

The fish is deprived of oxygen in the water and has to endure carbon acid, so it floats its head. When the floating head phenomenon is severe, it can cause the death of fish.

Juanjuan stood by the fish pond contracted by her aunt's family, watching the fish swim around in the pond. Suddenly, a fish jumped out of the water, and then another fish jumped out of the water and flipped a few times in the air, and then fell heavily into the water, splashing a small wave. "Why do fish jump out of the water?

Juanjuan asked her cousin. While feeding in the pond, the cousin told Juanjuan that there are several reasons why fish jump out of the water, and that some fish are born with a love of jumping, and they think of it as a game. There are also fish that jump out of the water to avoid predators, and in this way they want to scare away enemies or escape from them.

Oh, I see", Juanjuan pointed to the fish pond and said, "Our fish jumping out of the water is playing a game, right?" But my cousin said, "."

No, our fish jumped out of the water not to play a game, nor to avoid predators, but because the weather was hot, there were too many fish in the pond, and there was less air in the water. ”

Because there is not enough air in the pond, the fish will jump out of the water to suck the oxygen in the air.

This phenomenon is known as the floating head of the fish.

A slight "floating head" can affect the growth rate of fish, and in severe cases, it can cause a large number of fish to die. Big wheels.

The phenomenon of "floating heads" of fish is most likely to occur at night in winter and after lightning in summer.

Green plants only release oxygen when they photosynthesize in the sun, and at night they absorb oxygen.

There are four main reasons why the fish in the river keep jumping. The first is foraging, where fish jump out of the water when there is food on the surface. The second is respiration, when the oxygen content of the water is low, the fish will jump out of the water to breathe.

The third is self-preservation, when the fish is chased by predators, they will jump out of the water and escape. The fourth is breeding, where some migratory fish need to skip some places to return to their spawning grounds. <

For some fish that feed on insects, small stuffy birds and mammals, jumping out of the water is to feed for the sake of the canopy. This fish has a certain jumping skill, it will bend its body in the water, then swim as fast as possible to the target and get out of the water, so that it can catch its prey, but will not jump out at other times.

When the oxygen level in the water is low, some fish will jump out of the surface of the water to breathe. This condition is generally less common in living water, but it can be encountered in stagnant water, especially in summer or continuous rainy weather, when the dissolved oxygen level of the water body decreases due to higher temperatures or lower air pressure, and the fish will jump out of the water to breathe.

Not all fish can jump out of the water, so this has become a way for some fish to protect themselves. When they are chased by predators such as predators, they can jump out of the water for a short time, so that they can not find a trace for the predator, and when they fall back into the water, they can escape to other places, so as to escape the catastrophe.

Many fish have migratory characteristics, and when they grow to a certain extent, they will migrate to the place where they were born to reproduce, and because of the inevitable terrain in the process, they can only try to get past by jumping non-stop.

Jumping in the water is an instinctive reaction of the fish itself in order to survive.

Reasons: 1. Foraging: Food is an essential element for survival, so fish have developed unique predatory skills.

After discovering the prey, the ** big shark rushes to the prey like an arrow, and after successfully catching it, it jumps high out of the water by inertia, and the prey in its mouth loses its vitality due to lack of oxygen before falling into the water.

2. Self-protection: When the fish are chased in the water, in order to protect themselves, some fish will jump to the water, so as to confuse the enemy, hide their traces, and re-enter the water, often changing the escape path and fighting for escape time.

3. Attracting the opposite sex: In fish life, male frolicking and lively is a way to attract the opposite sex. For social types of fish such as toothed whales, dolphins, killer whales, and beluga whales, the males jump out of the water and burrow into the water, causing waves at the surface, more often to attract females.

The fish in your He Ying's cavity may have a fish body imbalance, which is not easy to treat, the mortality rate is very high, it is a terminal disease of the fish, but sometimes it will be better even if it is not treated. Now I can only do my best to salvage.

Fish body imbalance.

Signs of illness: Fish cannot control their position in the water and sometimes they can only rise from the bottom with the best of their might; Sometimes it is not possible to leave the water, or even turn upside down on the water. If the problem is not caused by another disease, then the question may be a malfunction of the swim bladder.

It may also be due to insufficient exercise and excessive baiting, resulting in gastrointestinal disorders (feces and fat block the air in the swim bladder and cannot be regulated, and too much air in it makes the fish belly upward, so raising the water temperature is to help the gastrointestinal activity to be better and the fish will be more active to restore the regulatory function), use gastrointestinal medicine (humans can also use) mixed bait to feed!

It may also be due to a congenital imbalance of balance, or it may be due to too much ammonia nitrogen in the water, which makes the fish poisoned.

Recommended method: There is no effective way to do this. Because the disease is induced by cold water, a slight increase in temperature combined with a moderate (1%) saline bath often relieves the condition. Feeding daphnia or bugs to improve digestion can help**.

Strengthen water change, keep water quality stable, and try to feed various antibiotics.

Give it a try.